How much does the job pay? http://ferso.org/the-dark-knight-online-slot-game/ batman the dark knight slot machine  Darya Gaysina, Ph.D., from the University of Leicester in the United Kingdom, and colleagues used data from three studies to assess the correlation between maternal smoking during pregnancy and offspring conduct problems among children raised by genetically related and genetically unrelated mothers. The studies included a longitudinal cohort study comprising biological and adopted children; a longitudinal adoption-at-birth study; and an adoption-at-conception study among genetically related and genetically unrelated families. Maternal smoking during pregnancy was quantified. Offspring conduct problems were assessed at age 4 to 10 years based on parent or teacher report and using behavior rating scales.